Improvement in alcohol-stills



D. G. RUSH. Alcohol-Stills,

Patented Nov17,1874.

U ITED STATES PATENT OFFICE.

DAVID Gr. RUSH, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN ALCOHOL-STILLS.

Specification forming part of Letters Patent No. 156,949, dated November17, 1874 application filed June 10, 1874.

CASE D.

To all whom it may concern:

Be it known that I, DAVID G. RUsH, of Ohicago, county of Cook and Stateof Illinois, have invented certain Improvements in (DonstructingWater-Baths in Alcohol-Columns, of which the following isaspecification, reference being had to the accompanying (lI'Et-Wll'lgS.

The object of my invention is to conduct spirit vapors into thewater-baths of an alcoholcolumn through loug, narrow, and continuousopenings in the diaphragms of the column. These diaphragms in allalcohol-columns are commonly known as water-baths, although the liquidcontained in them is spirituous. The narrow opening in the diaphragm ismounted by a continuous scrolllike cap, deflecting the vapor on bothsides of the opening and cap in thin sheets, and delivering it in thebath widely distributed, so that the vapor shall be thoroughlyincorporated with the liquid in the bath, and not be driven through thebath by displacing the liquid.

In manufacturing alcohol, the spirit vapor is passed througha columnhaving a number of baths of a graduated temperature, lower at the topthan at the bottom. The alcohol, vaporizing at a lower temperature thanwater and other impurities, will rise out of the baths, beingsuccessively increased in strength; but, when the vapor is driventhrough the bath, the effect of the baths is greatly lost.

The device is illustrated more in detail in the plan view, Figure 1representing a sectional view of an alcohol-column with two improveddiaphragms or baths. n

A working column should have not less than fourteen such baths.

A represents the pipe through which the alcoholic vapor enters thecolumn. B B are the water-baths, with narrow continuous openings D D. (lO G O O O are return-pipes, through which the water and impurities tlowdown, and

pass out of the column through pipe E. F F represent the scroll-likecaps, dividing the as cending vapor and deflecting it in thin sheets onboth sides of the openings, where it enters the bath. G is the pipethrough which the alcohol-vapors pass from the column to an ordinarygoose, and H is a pipe through which the liquid condensed in the gooseflows back in the column.

Fig. 2 is a horizontal view of the diaphragm and appurtenances, with theseveral connections of the column in perspective, marked by theappropriate letters by which they were described.

I. claim as my invention The long narrow continuous or circular openingswith double deflectingcap, dividing the vapor into thin sheets, anddelivering the vapor in the water-baths for an alcohol-coin m n on twosides of the cap, substantially as described.

Witnesses: DAVID G. RUSH.

D. W. C. CASTLE, J. XV. J EFFERY.

